In order to reduce the misdriving rate and traffic delay at the interchange exit, improve transportation efficiency and ensure traffic safety of the road network hub or node. On the basis of studying the safety of the interchange exit, the principles of traffic engineering and ergonomics are applied, and the research methods of theoretical calculation and comparative analysis are used to study the influence of the lane mandatory sign and navigation of interchange exit on driving behavior. Analyzing the function of the lane mandatory sign and the information service characteristics of the car navigation system and the relationship between the two, the distribution method of the driver's visual resources is studied according to the probability and statistics theory, and then establish the information coupling model based on the lane mandatory signs and navigation function. From the perspective of the lane indication concept and according to the driver's cognitive behavior, the driver's behavior of the interchange exit is analyzed, and propose the adaptability requirement of the exit form based on the lane indication and navigation coupling function, and then the exit optimization form of the interchange is proposed.

CICTP